Carolyn Works with Infants

Carolyn works with infants.She wants to introduce them to tonal instruments.What is the best way for her to do this?

A) Hold the infant in her lap and model how to use the instrument, then let them handle it.
B) Put several instruments in a music center for them to explore.
C) Avoid tonal instruments because they are too young to play them.
D) Play the instrument so they can hear it, but avoid letting them touch it.